This thesis focuses on the way of inhabitants registration in the Czech Republic according to the Act no. 133/2000 Coll., Resident register Law and on institutes associated with the inhabitants register. The main goal of this thesis is to explain the issues of inhabitants registration, the statutory provisions and the history of the registration of inhabitants in the Czech lands. Another aim is to clarify the terms official address, register office, why and by virtue of is this institute granted to citizens. This thesis will also focus on issues that are connected to institute of official address in connection with the delivery of civil or administrative proceedings. In the practical part there will be evaluated questionnaires which were sent to authorities of municipalities with extended powers in Ustecky Region, Central Region and in Prague. In the end of the thesis there are suggestions for possible changes in connection with the submitted draft amendment to the Resident registry Law.

The thesis deals with possibilities for more precise determination of geographical position of given IP address by combination of estimates of data obtained from geolocation databases. The first part introduces the issue on theoretical level. Possibilities of network device identification, its geographical location and principles of geolocation databases are described here. After analyzing the theoretical part of this issue, the current state of application for geolocation databases is described. The next section introduces a new application which uses original software ip2geotools as a library. Using the three implemented methods for combining results (based on average, median, and cluster analysis by K-Means algorithm), the new program allows to estimate the physical location of IP address. The app is complemented with console interface and geographic data visualization on the map. In the last part, the accuracy of computational methods is validated and a detailed statistical analysis of data obtained by performing a calculation over a set of IP addresses with known geographical location of the RIPE Atlas service is performed.

This diploma thesis deals with the design and implementation of an application suitable for the anonymization of PCAP files. The thesis presents TCP/IP model and for each layer highlights attributes that can be used to identify real people or organizations. Some of the anonymization methods suitable to modify highlighted attributes and sensitive data are described. The implemented application uses TShark tool to parse byte data of PCAP format to JSON format that is used in the application. TShark supports lots of network protocols which allows the application to anonymize various attributes.  Anonymization process is controlled by anonymization politics that can be customized by adding new attributes or anonymization methods.

The diploma thesis The Civil Registration under the Act 133/2000 Coll., focusing on the place of residence and the issue of official addresses in the exercise of state administration and civil proceedings is dealing with the population register since the origin of the right of domicile till the current legislative framework. In the first part the terms are defined in theoretical level relating to the administrative procedure, records of citizens and legal framework of examined issues. In the practical part there is the analysis of undertaken questionnaire surveys. Respondents were people with an official address and a questionnaire survey examined the experiences of citizens with address of permanent residence at the headquarters of the registration office. Another method of exploring the issue were structured interviews. Interviewees were persons with an official address, clerks of municipal office and clerks of the court mailroom. Through evaluating the data obtained various aspects of the institute of official address have been explained. Their effect has been assessed not only to people who are registered on an official address, but also to other citizens and public administration.

This work examines hyper-local media in relation to global economic recession and new media phenomenon. The definition of hyper-local media is suggested in the geographical and communities context. Practical part of the study describes Naše adresa project, whose aim is to fulfill the principles of hyper-local news in the Czech Republic. There is also a proposal of community integration of Naše adresa project web part with the existing social networks like Facebook.

This work is focusing on reasons for protection of email addresses against automatic recognition, which aims to find other recipients of spam. Includes description of how this protection can be increased and these methods are evaluated in terms of level of protection and conservation addresses accessibility of websites. The part of this work is to determine the current status of the website addresses of public universities in terms of utilized methods of record. Status on these sites is investigated using application, which in addition to finding addresses, finding the method of writing on a selected sample sites. The various methods used to write addresses are evaluated on the results of the application and other recommendations for improvement are discussed.

The first part of this thesis deals with an approach of designing and developing of application for IP geolocation using various geolocation databases. Methods of geographical location of network devices and amount of available data provided by chosen commercial and freely accessible geolocation databases are presented. The data are summarized with focus on methods of obtaining information about IP addresses from various databases. In the paper there are also presented ways used to develop the Python application and its parts, which can be easily reused in other programs. The command line program was created to demonstrate that all parts of the developed application work properly. The whole application is freely accesible under the conditions of the MIT license, published on GitHub (https://github.com/tomas-net/ip2geotools/) and in the Python package index PyPi. The second part of this thesis deals with the description of cyberthreats and the use of developed application to mass geolocation of IP addresses that are listed in chosen freely accessible lists as sources of email spam or cyberattacks. Geographical analysis of cyberattacks sources shows countries of origin. Results of analysis are presented in graphs and maps.

Thesis deal with geolocation in internet network. There are described possibilities of geolocation and thesis is mainly focused on passive geolocation methods. Under passive geolocation belongs location databases which there are described as in theoretical way as used in practical part of thesis. In practical part there is created complex system for geolocation in internet environment which used paid and free geolocation databases. Another used database is WHOIS. Data from paid databases is processed and accuracy of databases is evaluated.

This thesis is focused on finding the physical location of stations by the passive geolocation techniques, particularly using the registration database of IP addresses. The first two part are focused on a theoretical analysis of this problem, the next two parts of this thesis deal with the solution of this problem and discussion of the results.

Diploma thesis is focused on IPv6 protocol implementation in real company´s enviroment. In the beginning we are introduced with theoretical knowledge about this protocol. After analysis of current state of XXX spol s r.o. we can use this knowledge in practical part of thesis for proposal of possible solutions including physical devices.